When Did Rome Have 2 Emperors?

By Michael Ferguson

When Did Rome Have 2 Emperors?

The Roman Empire was one of the most powerful and influential civilizations in history, and its governance system underwent various changes over time. At certain periods, Rome indeed had two emperors ruling simultaneously. Let’s explore when and why this unique situation occurred.

The Tetrarchy – Four Rulers

In the year 293 AD, Emperor Diocletian introduced a new system of governance known as the Tetrarchy. This system aimed to address the challenges faced by a single ruler in managing such a vast empire.

Under the Tetrarchy, there were two senior emperors called Augusti and two junior emperors known as Caesars. The Augusti held supreme power, while the Caesars acted as their designated successors.

Benefits of the Tetrarchy

  • Improved Administration: With four rulers, the empire could be divided into smaller administrative units known as dioceses. Each emperor was responsible for governing their assigned region efficiently.
  • Military Strength: By having two senior emperors, one in the east and one in the west, Rome could better defend its borders from external threats.
  • Smooth Succession: The appointment of Caesars ensured a clear line of succession. When an Augustus retired or died, his designated Caesar would become the new Augustus, maintaining stability within the empire.

Crisis and Collapse

This dual-emperor system worked reasonably well during Diocletian’s reign. However, after his retirement in 305 AD, internal conflicts arose among the rulers. The succession system also began to break down, leading to a series of civil wars.

By 313 AD, the Tetrarchy had effectively collapsed, and Constantine the Great emerged as the sole ruler of a reunited Roman Empire. This marked the end of the period when Rome had two emperors.

Conclusion

The era of two emperors in Rome occurred during the Tetrarchy, a unique system introduced by Diocletian. The establishment of this dual-emperor system aimed to streamline administration, enhance military strength, and ensure smooth succession.

While it initially served its purpose, internal conflicts eventually led to its downfall. Nevertheless, the Tetrarchy remains an intriguing chapter in Roman history.